DD SS3 Fogs Won’t Work / Help

Just installed DD SS3 Pro Fogs and they won’t turn on. Tested connection with factory fogs and Rigid fogs, and they both work. Any idea what may be going on? Am I missing something? Thanks.

 

Try flipping the wires, your polarity may be reversed

 

^ if that doesn’t work bench test the lights by touching positive to the positive terminal on your battery and the negative wire to negative on your battery.

 

Tried that.

 

Got it. That won’t send too strong a current to the lights?

 

Use a 9v battery to test the lights.

 

Only if you touch the wires together. Volts = current * resistance. The resistance in the circuit is the light assembly. Volts are the about the same either way. If the current were high enough to be a problem straight off the battery, it would be high enough to melt the factory harness.

Actually you can buy kits that use the plugs for your low/high beams to trigger relays, that then pass current over larger wires that run a shorter distance from the battery to power the low or high beams. Gains a few tenths of a volt to brighten the output a bit.